Prouess for applying and removing bushings



, s pari nu: du

mp0s@ w amid. The

mbsf into' which it has expensive.

s only a sma Way the paxzf The busmngfo i H01@ of th@ 'bushing 1 f 1 "t E37 wak-Eq mtavsgct uw im@ @f smllm dlffmww ai; the autel Fig. s am enz'lrged sotional View of part 100 of the coupling' ange 4from 15h@ riwh; hand @nfl auf Fig. showing the pari; of tra Hnge before the bushing is applied by his iin/en han.

Fig. 3 is a sectional View of a bushing such 1M as 1S e ses?. o busi; the haie by lus pmess.

Figs. '15ond 6 show e somewhat dierent style of bushing.

"ig 7 hows a flengeas 1n Fig. 2 with the bushing inserted in place inthe early part ot the process and thepunch insertedethrouoh the intersectii'ig holes and ready to punch the metal ofthe bushing into' the end othe in-` tersecting liolein 'the lla-nge.

Fig. A8 shows-the' nent stepin the process after the punch has been driven into the Wall of the bushin to swell out the metal and then the unc removed.

Fig. 9 1s a sectional view showing e busliing, in a ,different position and-the process completed by swelling themetnl into the intersecting hole.

Fig. 10 is an end view of the bushing and cated by arrow lin Fig. 7 and this part the ange or member showing the process completed with the Wall ot the bushing swelled into the intersect-ing hole.

An illustrative forni .oli coupling Which may be hushed byvthis process is shown in Fig. 1 as comprising shaft 1 which may be connected ito' shaft 2 throi'lgh a flexible coupling made -up 'of langes 3' and L1 keyed to the shafts 1 end 2 in the usual manner. The

. flanges 3 andai. may be connected by a number of flexible connecting pins 5 which have as their ends pin keepers 6 and 7. The keeper maybe detachably fastened in flange 3 by spring retaining ring @and keeper 6, when desired, therefore practically fastened with` out motion in pin hole 9. lnthe flexible conf necting pins 5 'as used inconnection With a hushed pin coupling connecting springs 16 are, if desired,connectedsubstantially' Without slide by thecross pins 1717 to the keepers 6 and 7. rThe bushing 11 has been placed in the flange and locked in place by driving through the intersecting holes 14 and 15 With uy punch to swell out the metal l2 of the bushing 1 1 into the'end 13 ot the intersecting hole 14 of the flange. The punch is then removed. The bushing 11 is therefore tightly and/renewably held in place in the flange/l. Keeper 7 of the flexible connecting pin 5 is slipped in place inside hole 10 of bushing 11. lhen tor any reason it is dcsired to remove this bushing` the flexible pins 5 are Withdrawn by releasing the spring re- 'taining ring 53 and sliding the keeper 7 out olf the hole 10 ot' the bushing. A drill, not shown in the drawing, is then inserted through the intersecting;` holes 1l, 1.5 against the swelled. out portion of the bushing Wall and the swelled out portieri 12 drilled out so that the bushingl 11 may be'pushed out oit the hole 20 in the lange 4.

1n this Way a flange l prepared as in Fig. 2 with the bushingl hole 2f) und thc intersecting hole 111 and the intersecting hole end 13 may be used byi-ny process with various bushings of the form as shown in Fig. 3 Where the bushing 10 does not have the in tersecting "hole 15 enter the diametrically op- .prepared as in Fig. 2

posite Well oli the bushing. r the flange l A may be used withthe other forms of bushings shown in fl, 5 and 6 Where the intersecting holes 22, 27 and 31 respectively are continued intofthe diametrically opposite Wall forming the depressions 23, 28 andY 32 respectively which part Way pierce or completely pierce the bushing Wall. In all these bushings either as iu Figs. 3, 4,'5 or 6 the bushing is slipped into place in the flange as illustrated in Fig. Tand then the punch 35 i's'inserted through the matching intersecting holes 141 and-15 so that the i punch end 36 bears against the diametrically opposite wall ot' the bushing at 12.

The punch is then `given a blow as indithe process opposite Wall 12 o 'l the bushing!y so as to form a swelled out portion 12 in Fig. S. This isagain shown in slightly different torni as the swelled out portion 43 in Figi-9 and 'the swelled out portion 12 in the end view in the Fig. v10. lifter the blow is struck as indicated in Fig. 7 the punch is witln'lrawn and the bushing will be lockcdin place by the swelled out portion ot the, bushing. rlChe lockingl by this process is a very simple easy one and has the advantage ot convenience and cheapness compared with any previous methods.

If et any time it isl desired to remore the bushing, the-'bushing is unlocked by insertingA oit v forces outward thediumctrically enl Gli

an ordinary drill, not shown, through the in f tersec-ting holes 14 and 15 as in S against .the swelled out portion 12 of the dialnet-rif;

loo

cally opposite Well. lith the drillin thief position only a slight drilling operation is necessary to drill out the entire swelled out portion 12 by using a drill vwhich is approximately the size of .the intersecting holes "14, 15 and also the sizeof the swelled out portion 12. 'After the swelled out portion 12 isdrilled by the drill, the drill is removed and the bushing is pushed out from the hole in the flange or member.

This invention has been' described in connection with a number of illustrative errangements,`" number and order or steps,

methods o'l manufacture and use und illus trative shapes, forms, proportions end erticles Which meyube made by these processes, to the details ont which disclosure the invention is not of course to belimitcd, since what. is

claimed as new and what is desired to besematching intersecting holes e punch und. 'apy of the bushing into'a lio e in the -v to swe 'out the wallpof t remove the swel uso vbushed and vmatching .img in the hole to be bushedand matchin plying force to the punch to swell out the wall of the bushin into the end of the intersecting ,hole' in the p ange, and thenl removing the punch.

2. 'Ihe process of fastening a bushing in a hole in a flexible cou ling member which comprises inserting the ushing in the hole to be in the bushing with an intersecting hole in the member, and inserting through the two matching intersecting ho esa punch and a plying force to the punch to swell out the wall moving the punch, which p comprises insertmg a tool through the two matc'hn holes to ed out portion of-t e wall so the bushing can be removed.

`.4. The process of fastening a bushing in a hole in a machined part which comprises i'nserting the bushing in the hole to be bushed andl matching up an intersect'y hole in the bushing with an intersecting ho e up an intersecting hole e bushing, and reh .the punch to swell out the w 4 punch lto swell out the wall of the bushing into the end of the intersecting liole in the pprt and then removing the punch,

5. 4The process of removing a bushing from tot-he a hole in a macliinedpai't, said bushing hav- '11 img been applied by inserting the bushing in the hole to be bushed and insitchin up an intersecting holein the bushing with an `intersecting hole in the the two matching intersecting holes a punch and applying force tliewall of the bushing, and removi punch, which comprises inserting through the two n e process of removing a bushing from a hole in a machined part havin in the hole with the bushin and in the part, said bus ing hpving a swel ed out portion,

inserting a tool through the two matching a bushing the wall so the bushing can be'removed.

part end inserting through matched intersectin holes in he process offastening a bushing in a l Y hole in a machined part which comprises inm serting the bushing in the hole to be hushed and matching up an intersecting hole in the bushing with an intersecting hole in the part and inserting through the two matchin intersecting holes a punch and applying f ROBERT A SMITH.

orce :to l 1 of the bushinga 

